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authorPhilipp Zabel <p.zabel@pengutronix.de>2016-07-14 17:29:43 +0300
committerDavid S. Miller <davem@davemloft.net>2016-07-15 21:53:02 +0300
commit77501a79cec40eac65c59ee7af3f786c703ead9c (patch)
treefab4f2e3f889b732c7aaaa9c1d9cd72ca698d998 /drivers/net/phy/micrel.c
parent2f43b9beeac8e063353452b4bcf8712f6c2de27b (diff)
downloadlinux-77501a79cec40eac65c59ee7af3f786c703ead9c.tar.xz
net: phy: micrel: Add KSZ8041FTL fiber mode support
We can't detect the FXEN (fiber mode) bootstrap pin, so configure it via a boolean device tree property "micrel,fiber-mode". If it is enabled, auto-negotiation is not supported. The only available modes are 100base-fx (full duplex and half duplex). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/micrel.c')
-rw-r--r--drivers/net/phy/micrel.c34
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 5a8fefc25157..059f13b60fe0 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -311,6 +311,36 @@ static int kszphy_config_init(struct phy_device *phydev)
return 0;
}
+static int ksz8041_config_init(struct phy_device *phydev)
+{
+ struct device_node *of_node = phydev->mdio.dev.of_node;
+
+ /* Limit supported and advertised modes in fiber mode */
+ if (of_property_read_bool(of_node, "micrel,fiber-mode")) {
+ phydev->dev_flags |= MICREL_PHY_FXEN;
+ phydev->supported &= SUPPORTED_FIBRE |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_100baseT_Half;
+ phydev->advertising &= ADVERTISED_FIBRE |
+ ADVERTISED_100baseT_Full |
+ ADVERTISED_100baseT_Half;
+ phydev->autoneg = AUTONEG_DISABLE;
+ }
+
+ return kszphy_config_init(phydev);
+}
+
+static int ksz8041_config_aneg(struct phy_device *phydev)
+{
+ /* Skip auto-negotiation in fiber mode */
+ if (phydev->dev_flags & MICREL_PHY_FXEN) {
+ phydev->speed = SPEED_100;
+ return 0;
+ }
+
+ return genphy_config_aneg(phydev);
+}
+
static int ksz9021_load_values_from_of(struct phy_device *phydev,
const struct device_node *of_node,
u16 reg,
@@ -788,8 +818,8 @@ static struct phy_driver ksphy_driver[] = {
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
.driver_data = &ksz8041_type,
.probe = kszphy_probe,
- .config_init = kszphy_config_init,
- .config_aneg = genphy_config_aneg,
+ .config_init = ksz8041_config_init,
+ .config_aneg = ksz8041_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,